Module 3: Reactive Chemistry Notes

Sections

1. 3A Predicting the products of reactions Mastered

   Evidence of chemical change, and how to recognise and predict the products of synthesis, decomposition and combustion reactions, with balanced equations and states, the thermal decomposition investigation, and the chemistry of First Nations methods that make toxic plant foods safe.

   Open notes
2. 3B Reactions in solution and net ionic equations Mastered

   Precipitation reactions and the solubility rules, acid–base and acid–carbonate reactions, and writing molecular, full ionic and net ionic equations with spectator ions, plus an investigation to predict and test the products of reactions in solution.

   Open notes
3. 3C Reactivity of metals and the activity series Mastered

   Comparing how metals react with water, steam, dilute acid, oxygen and other metal ions, building the activity series from experimental data, single displacement reactions, and relating reactivity to first ionisation energy and its limits.

   Open notes
4. 3D Oxidation, reduction and half-equations Mastered

   Oxidation and reduction as loss and gain of electrons, oxidising and reducing agents, oxidation numbers, writing and balancing half-equations in acidic solution, and combining half-equations into balanced redox equations.

   Open notes
5. 3E Galvanic cells and standard electrode potentials Mastered

   How a galvanic cell separates oxidation and reduction to produce a current, the anode, cathode, salt bridge and inert electrodes, the standard hydrogen electrode and the table of standard reduction potentials, calculating cell potentials, predicting spontaneous reactions, and measuring half-cell potentials.

   Open notes
6. 3F Measuring rates of reaction Mastered

   Defining and measuring reaction rate, average and instantaneous rates from gas-volume and mass-loss graphs, drawing tangents, and the practical investigation of how temperature, concentration, surface area and catalysts change the rate.

   Open notes
7. 3G Collision theory, activation energy and catalysts Mastered

   Collision theory with energy and orientation, activation energy and energy profile diagrams for exothermic and endothermic reactions, the distribution of particle energies, and explanations of how temperature, concentration, surface area and catalysts change the rate.

   Open notes
8. 3H Reactive chemistry review Mastered

   Summary of Module 3 Reactive Chemistry: reaction types and net ionic equations, the activity series and ionisation energy, redox and half-equations, galvanic cells and E°, and rates with collision theory, followed by a mixed HSC-style test.

   Open notes